Buttonwood Park Zoo: Open 10 a.m.-5 p.m. daily. Admission: $6, $4.50 seniors and teens, $3 children ages 3-12, children under 3 free. Free admission for all active duty, retired and reserve military personnel and their dependants who show proof of service Memorial Day weekend, May 24-26. Group rates available for groups of 10 or more; advance registration required. YouTube contest, through May 23, free with zoo admission. Make a zoo movie (videographers must follow zoo visitor guidelines) and submit it by May 23 for a chance to win a lifetime membership to the zoo. The top five videos will be posted on YouTube and the zoo's Web site and other prizes will be awarded. Visit the zoo, call (508) 991-4556, Ext. 19, or go to www.bpzoo.org for contest details and entry forms. (508) 991-6178. 425 Hawthorn St., New Bedford.

Hazelwood Park summer fair: Presented by the South End Business Association, May 29-June 1. Features a flea market; arts & crafts; entertainment; food; carnival and midway by Cushing Amusements ($15 bracelets sold, 5-8 p.m. May 29-30 and 1-3 p.m. June 1); and fireworks, 9 p.m. May 31 (rain date: June 1). New Bedford.